package com.example.f8399.testdemo.activity;

import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.databinding.DataBindingUtil;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.view.View;

import com.blankj.utilcode.util.FileUtils;
import com.blankj.utilcode.util.ToastUtils;
import com.example.f8399.testdemo.BaseActivity;
import com.example.f8399.testdemo.R;
import com.example.f8399.testdemo.databinding.ActivityFileExplorerBinding;

/**
 * 文件浏览功能，其实我想用到添加附件的功能上面
 */
public class FileExplorerActivity extends BaseActivity {

    ActivityFileExplorerBinding mBinding;
    private static final int PICKFILE_RESULT_CODE = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mBinding = DataBindingUtil.setContentView(this, R.layout.activity_file_explorer);

        initView();
    }

    private void initView() {

    }

    public void fileExplorer(View view) {
        switch (view.getId()) {
            case R.id.button21:
//                pickFile();
                ToastUtils.showShort("功能未开通");

                break;
            case R.id.button22:
//                pickFile2();
                ToastUtils.showShort("功能未开通");

                break;
            case R.id.button23:
                browseDocuments();
                break;
                default:
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case PICKFILE_RESULT_CODE:
                if (resultCode == RESULT_OK) {
                    Uri uri = data.getData();
                    String path = getPath(this, uri);

                    mBinding.textView4.setText(path);
                }
                break;

        }
    }

    private void getFile(String filePath) {
        if (FileUtils.isFile(filePath)) {
            ToastUtils.showShort("yes");
        }else {
            ToastUtils.showShort("no");
        }
    }


    private void browseDocuments()
    {

        String[] mimeTypes =
                {"application/msword", "text/plain", "application/pdf", "application/zip"};

        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            intent.setType(mimeTypes.length == 1 ? mimeTypes[0] : "*/*");
            if (mimeTypes.length > 0) {
                intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
            }
        } else {
            String mimeTypesStr = "";
            for (String mimeType : mimeTypes) {
                mimeTypesStr += mimeType + "|";
            }
            intent.setType(mimeTypesStr.substring(0, mimeTypesStr.length() - 1));
        }
        startActivityForResult(Intent.createChooser(intent, "ChooseFile"), PICKFILE_RESULT_CODE);

    }

    private void pickFile() {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        intent.setType("*/*");
        Intent i = Intent.createChooser(intent, "File");
        startActivityForResult(i, PICKFILE_RESULT_CODE);
    }

    private void pickFile2() {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("file/*");
        startActivityForResult(intent, PICKFILE_RESULT_CODE);
    }

    /**
     * 从uri中获取文件的路径
     * @param context
     * @param uri
     * @return
     */
    public static String getPath(final Context context, final Uri uri) {

        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }

            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {

                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

                return getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[] {
                        split[1]
                };

                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {
            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }

        return null;
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context The context.
     * @param uri The Uri to query.
     * @param selection (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     */
    public static String getDataColumn(Context context, Uri uri, String selection,
                                       String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {
                column
        };

        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }


    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }
}
